shooterrex

https://www.armalite.com/SACItem.aspx?Item=AR10REKIT01 This right here will fix it

https://www.armalite.com/SACItem.aspx?Item=AR10REKIT01 This set up works. If it says out of stock call them they are pretty good about finding another set.

Armalite uses the same spring for rifle and carbine extensions.

A diamondback upper would also fit that lower. Delta doesn't have a very good reputation here.

Sorry to hear this. Prayers for all involved.

1/4" between bolt face and bolt catch is good to go. Somewhere I got the impression that it was more like an inch. I must have misread something. You probably need to open the gas port a bit and get a heavier buffer. Slash @ heavy buffers can fix you right up. You won't know about the gas port until you measure it.

Welcome from KY

First off your buffer is to light. It should be close to 5.4 oz. If your bolt is going back that far past the bolt catch it is also to short. Where the buffer tube screws in to the receiver check to see if the bcg is hitting the receiver. A too short buffer will let it hit when it isn't supposed to. Your bolt is probably traveling to fast to catch the bolt catch. My 16" wilson 6.5 creedmoor barrel runs fine w/a fixed gas block. It has the same gas tube length as yours.

Welcome from KY

The only thing dry firing hurts is rim fire and older guns with brittle firing pins. Not a good idea for older S&W revolvers w/the firing pin on the hammer. Snap caps solve this if you are woried about your gun use snap caps.

Looks good. Nice work.

Set screws look missing. Rockset works well for them too.

Welcome from KY

Looks like and being the same are 2 different things. Weights and spring material and spring rates matter.

Is she still hiding in the cabinet???

https://www.armalite.com/SACItem.aspx?Item=EA1090 https://www.armalite.com/SACItem.aspx?Item=AR10REKIT02 Call them they don't list the spring on the web separate. The right spring and proper weight buffer is the first step on solving your problems.

That buffer should only weigh about 5.3oz total. That seems to be at least part of the problem.

Looks like fun.

Copy

18" rifle length gas. A2 stock.

How does that work? I posted the link and you get a cut? Sat down w/Dave last night and discussed what he needs to order for his 6ARC.

You have a carbine length buffer tube. If you are not wanting an adjustable stock this one will work. https://magpul.com/moe-fixed-carbine-stock-mil-spec.html?mp_global_color=undefined

I was having similar issues w/my 6.5 creedmoor. I shitched the ejector to this and the problem went away. https://www.kakindustry.com/lr-308-parts/308-upper-parts/308-bcg-and-spare-parts/kak-bcg-ejector-308